Complex sentences are accurate and there is also passive voice used. Each body paragraphs explained the steps of each process in a logical order. The body paragraphs are organised well and linking devices are used flexibly and accurately. The overview contains key features of both diagrams and also highlights the connection between them. These are all poured into a concrete mixer which continually rotates to combine the materials and ultimately produces concrete.Ĭomments: This diagram gives a concise introduction. The other materials used are sand (25%), cement (15%) and water (10%). Regarding the second diagram, concrete consists of mainly gravel, which is small stones, and this makes up 50% of the ingredients. The final product is afterwards put into bags ready to be used. The resulting mixture is ground in order to produce cement. This powder is then combined in a mixer before passing into a rotating heater which has constant heat applied at one end of the tube. In the first stage of making cement, limestone and clay are crushed together to form a powder. While the process of making cement uses a number of tools, the production of concrete requires only a concrete mixer. Overall, limestone and clay pass through four stages before being bagged ready for use as cement which then accounts for 15% of the four materials used to produce concrete. The diagrams illustrate the way in which cement is made and how it is then used in the process of making concrete.
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